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Comment on Show HN: Trontium Reactor, the first USB Power Delivery battery

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Not sure what I get what all the hype on the site is about. It's a big rechargeable battery you can use to power all your USB things... ok this one supports USB-PD (how many devices support that?) but is that really that big of a deal? Right now it looks like a solution looking for a problem.

The idea of negotiating voltage (up to 20V) just doesn't seem all that great to me: consider a failure mode that lets the full 20V into USB devices designed for only 5, like the majority are.

USB Power Delivery starts out at 5V. Voltage is only increased when a signal is received from a device requesting more than 5V and after the devices confirm that the cable is capable of carrying the power.

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